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BenFrantzDale (Wikimedia Commons) · CC BY-SA 4.0

作成者

Woody

11. 10月 2026

Pine Boards with a Chainsaw Mill

A chainsaw mill is a frame that holds the saw's bar flat at a set height, so the chain rips a log lengthways into boards. The first cut rides on a straight board screwed to the log; every later cut rides on the flat face before it. The green boards are then stacked on stickers to air-dry. Pine dries fast: a 25 mm board can reach about 14 % moisture in 60 to 90 days in good drying weather. Oak and other slow species take far longer.

中級者

1 day milling, 2–3 months drying

手順

Pick and prop the log

Choose a straight pine log, 2.5–3 m long, without large knots. Prop it on two short logs so it cannot roll and the chain will not reach the ground.

このステップの材料:

針葉樹材の丸太1 個

必要な工具:

メジャー（巻尺）

Fit the mill

Bolt the mill to the chainsaw bar following its maker's instructions. A ripping chain cuts along the grain faster and smoother than a crosscut chain.

必要な工具:

チェーンソー（プロ林業用）

チェーンソー製材機

Screw on the guide board

Screw a straight board along the top of the log, level from end to end, as the rail for the first cut. Check it with the straightedge and level.

このステップの材料:

木ねじ6 個

必要な工具:

松板

コードレスドリル

直定規

水準器

First cut

Wearing helmet with visor, ear protection, gloves and boots, run the mill along the guide board and take off the top slab. Remove the guide board.

必要な工具:

チェーンソー（プロ林業用）

チェーンソー製材機

保護帽（ヘルメット）

防音耳当て

革の作業用手袋

先芯入り安全靴

Cut the boards

Set the mill a few millimetres thicker than the finished board, to allow for shrinking and planing. Run each cut on the flat face left by the one before.

必要な工具:

チェーンソー（プロ林業用）

チェーンソー製材機

メジャー（巻尺）

Seal the ends

Paint both ends of every board with end sealer the same day, to stop them splitting as they dry.

このステップの材料:

木口止め（パラフィンろう）0.5 リットル

Sticker the stack

On a level base at least 30 cm off the ground, lay the boards in layers with a gap between them, each layer on stickers every 40–60 cm, the stickers one above the other.

このステップの材料:

桟木（乾燥用の桟）30 個

必要な工具:

木製パレット

水準器

Cover and weight

Cover the top of the stack against rain and lay weight on it to keep the top boards flat; leave the sides open to the air.

必要な工具:

ターポリン

Measure the moisture

After 2 months, read a board from the middle of the stack. Air-dry outdoors reaches about 12–15 %; bring boards for furniture indoors to settle at 6–8 % before working them.

必要な工具: